Biology Middle School

This diagram is of an amniote egg.

What is the correct label for C in this diagram?


umbilical cord


womb


yolk sac

placenta

This Diagram Is Of An Amniote Egg.What Is The Correct Label For C In This Diagram?umbilical Cordwombyolk

Answers

Answer 1
I believe the answer would be placenta.
Answer 2

The labeling for the C in the given amniotic egg is placenta. The correct option is D.

What is an amniotic egg?

The amniotic egg is basically an air-breathing egg along with extraembryonic membranes and a shell.

During development, these encased the amniote embryo in a private pond and facilitated gas exchange with the surrounding environment.

The amnion forms a membrane that encases the embryo in amniotic fluid, while the allantois and yolk sac evolved into the umbilical cord.

Many mammals that we are familiar with have this type of amniotic egg, including humans, rabbits, dogs, and others.

The placenta is a developing organ in the uterus during pregnancy. A growing baby gets oxygen along with all the nutrients from this structure. It also cleans the baby's blood of waste products.

Thus, the correct option is D.

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Related Questions

Which of the earth systems does NOT transfer energy through convention cells

Answers

It’s most likely conduction.
Answer::Conduction....

When is the speed equal to 0.0 km/hr?
A.between hour 1 and 2
B. between hour 2 and 3
C. between hour 3 and 4
D. between hour 4 and 5

Answers

B because it between 2 and 3

Answer:

its B

Explanation:

What arguments would you use to convince people they should conserve water? What are two suggestions you would make about ways to conserve water?

Answers

Turn the water off when your not using it
Take shorter showers and don’t leave the water running while you brush your teeth.

can someone give me an example on how to write dichotomous keys please

Answers

Answer:

"For example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles."

Explanation:

For those keys it has to be precise for example if there’s like point teeth or small teeth , long fin long fin with a scar on it . Look at the whole body and see what it’s asking for

Consider a large group of seedlings growing beneath an oak tree. Why would they compete for space?

Answers

Answer:

for growth

Explanation:

just think about it

They compete with others for faster growing:)..... and growing in general

ASAP I NEED THIS NOW!!!!!!!


Planet A Planet B Planet C Distance from Sun 0.718 AU 1 AU 5.20 AU Mass 4.8676 × 1024 kg 5.9726 × 1024 kg 1,898.3 × 1024 kg Planet Composition rocky mantle, iron core rocky mantle, iron core hydrogen, helium Gases in Atmosphere 96% carbon dioxide, 3% nitrogen, 1% other 78% nitrogen, 21% oxygen, 1% other mostly hydrogen and helium Atmospheric Pressure on Planet’s Surface 92 bars 1 bar > 1,000 bars Average Temperature 464°C 15°C -108°C Part A Which of these planets is Earth? Explain your answer.

Answers

Planet b
Answer up there

i need help with this please help me!!!!!

Answers

Relate from plant cell to human

What led scientists to discover cells and cell theory?

The invention and improvement of microscopes.
Eyeglasses led to the discovery of cells.
The invention of the internet.
The invention of satellites.

Answers

Answer:

The invention and improvement of microscopes.

Explanation:

The internet and stellites were not invented until after this, eyeglasses were invented but they could not see things that small

How can I do this? Thanks! I am really confused :/

Answers

A bird is flying at 10 miles per hour east: Speed = 10 miles per hour, velocity = 10mph in eastward direction, Acceleration = 0 m/s².

What is speed, velocity and acceleration?

Speed is the rate at which an object covers distance; Velocity is the rate at which an object changes its position in a particular direction and Acceleration is the rate at which an object changes its velocity over time.

(1) Speed = 10 miles per hour

Velocity = 10mph in eastward direction

Acceleration = 0 m/s²

(2) Speed = The car's speed when traveling at 50 miles per hour is 50 miles per hour. When the car slows down to 20 miles per hour, its speed becomes 20 miles per hour.

Velocity = initial velocity is 50 miles per hour in the direction of travel. When it slows down to 20 miles per hour, its velocity becomes 20 miles per hour in the same direction.

Acceleration = Acceleration = (20 miles per hour - 50 miles per hour) / 10 seconds

= -3 miles per hour per second

(3) Speed = 2 feet per second

Velocity = Cannot determine

Acceleration = Cannot determine

(4) The distance traveled in a given time is known as "displacement"

(5) Speed =  2 meters per second east.

Velocity = 2 meters per second north

Acceleration = zero

(6) Speed =  5 meters per minute.

Velocity = 5 meters per minute east

Acceleration = cannot determine

(7) Speed = 70 miles per hour

Velocity =  70 miles per hour (North)

Acceleration = cannot determine

(8) Speed = 1/3 miles per hour

Velocity =  1/3 miles per hour

Acceleration = 0 miles per hour per hour

(9) Speed = Cannot be determined

Velocity = Cannot be determined

Acceleration =  Cannot be determined

(10) Speed = 3 meters per second

Velocity =  3 meters per second

Acceleration =  0 meters per second per second (since light always travels at a constant speed and does not accelerate)

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This contains chromosomes, genes, and DNA. *

A. Nucleus
B. Cell
C. Membrane
D. Vacuoles

Answers

Answer:

cell

Explanation:

because I know this stuff

Chromosomes, which are shaped like threads and house the DNA molecule in each cell, are found in the nucleus. The DNA that makes up each chromosome is tightly coiled around histone proteins several times to support its shape. Thus, option A is correct.

What are the important composition of nucleus?

The chromosomes in the cell nucleus and mitochondria contain DNA (deoxyribonucleic acid), which is the genetic material of the cell.

With the exception of certain cells, every cell's nucleus contains 23 pairs of chromosomes (such as sperm and egg cells and red blood cells). One chromosome has a large number of genes.

DNA composition. The most of DNA is located in the nucleus of a cell, where it is organized into chromosomes. Chromosomes contain histone proteins, which attach to DNA. When two strands of DNA are twisted together, they take the shape of a helix.

Therefore, the Nucleus contains chromosomes, genes, and DNA.

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What is the Author’s message in the Passage?
D. People should save water.
E. Water will soon be limited.
F. We need to use more water.

Answers

Can you show the passage so I can help you

Answer:

D.

Explanation:

In the passage, the Author lists many ways that you can conserve or save water.

Hope I helped! Please leave a comment or a rating!

What kind of organism might use cell division as a form of reproduction.

Answers

Answer:

multicellular organisms

Explanation:

Answer:

yes multicellular organisms

What is the selective pressure

Answers

Answer:

If i have permission to make a pun here is a good time to do that....................wait you wan't to hear it..................okay here is the joke...........ItS a PrEsSuRe yOu CaN cHoOsE

(sorry if you didn't need this nonsense)

Selective pressures are environmental factors or influences which may lessen reproduction in a species’ population and therefore contributes to evolutionary change or even extinction through natural selection.

Why do cats meow? (Brainliest if right, if both answers are right the first one will get it)

A. to get the attention of hooman
B. to get the attention of other cats
C. to scare off doggos
D. "This is MY territory! Back off!"
E. They do it for no reason

Answers

To get attention of the human
C
Is the answer
Hope this makes me win lol

These contain the specific instructions that make each type of living creature unique. *

A. DNA
B. Genes
C. Chromosomes
D. Nucleus

Answers

The answer is A. DNA

explanation: I learned it last year

Answer:

Either A. DNA or B. Genes

What are some factors that affect an element’s reactivity?

Answers

Answer:

Four major factors affect reactivity of metals: nuclear charge, atomic radius, shielding effect and sublevel arrangement (of electrons). Metal reactivity relates to ability to lose electrons (oxidize), form basic hydroxides, form ionic compounds with non-metals.

Explanation:

which level will tell you the most similarities in an organism?

Answers

Domain then kingdom then phylum
The phylum is the next level following kingdom in the classification of living things. It is an attempt to find some kind of physical similarities among organisms within a kingdom. These physical similarities suggest that there is a common ancestry among those organisms in a particular phylum.

pleasee choose the correct answer

Answers

Answer:

Between mars and Jupiter

Explanation:

between mars and jupiter is where the astriod belt is located. (between the rock and gas planets)

Mars and Jupiter girlllll

How does an adult sponge asexually reproduce?

Answers

Answer:

Sponges are able to reproduce both sexually

Using gametes and asexually by budding

Explanation:

Transverse and longitudinal waves can combine. Describe what kind of wave is formed and how matter moves as the wave passes through.
plz help lol

Answers

Answer:

surface wave!

Explanation:

hope this helps you!

Help me please
With 6th grade science

Answers

1- A huge area of air in the lower section of the troposphere that has similar characteristics throughout is called an air mass.
2 -

Anemometer - counts the number of rotations, which is used to calculate wind speed, and measures wind speed and wind pressure.

Thermometer - measure the temperature of a solid such as food, a liquid such as water, or a gas such as air.

Doppler Radar - can measure how fast rain or hail is moving toward or away from the radar.

Wind Sock - used to measure wind speed and the direction of the wind speed itself.

Barometer - measure atmospheric pressure, also called barometric pressure.

Weather Satellite - monitor the weather and climate of the Earth
Jeez I’m a idiot I’m in 9th and I don’t even know 6th grade stuff im dead but glad you got ur answers!

1. What factors shaped the cliffs of Victoria, Australia over time?
2. How do you know a rock has been or is being weathered?
3. How are weathering and erosion different?

Answers

1. Wind, water, wave action
2.It changes shape/ form
3. Weathering is the breaking of rocks into smaller and smaller pieces called sediments; erosion is the movement of these sediments by water, ice, wind, or gravity to a new location.
2. over time, rocks get weathered and is constantly changing it shape. we probably won’t be able to notice it because it’s a slow process.
3. weathering is little pieces getting broken away. while erosion is more like a force doing the work..

help What characteristic do all organic compounds have in common?

Answers

Answer:

All organic compounds contain carbon.

Explanation:

we doing the same thing and this was the possible answer.

Answer:

1. They all contain carbon.

2. Most of them are flammable.

3. They are all soluble in non-polar solvents.

4. They are most, if not all, are covalently bonded molecules.

Explanation:

As a result of a mutation, the DNA sequence AGT - TGA - CAT changes to AAT - TGA - CAT.

Which best describes the mutation?

It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.
It is a deletion in which the DNA base, G, was replaced with a different DNA base, A.
It is a substitution in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.
It is a deletion in which three DNA bases, AGT, were replaced with three different DNA bases, AAT.

Answers

Answer:

It is a substitution in which the DNA base, G, was replaced with a different DNA base, A.

Explanation:

Sorry for just now answering this for you. Hope This Helps!

It is a substitution because of technically g is supposed to turn in to a c regularly and since it turned to an A it is a substitution

compare how plant and animal cells to direct cell activity and make needed materials.

Answers

When animals eat plants it works thru the body

When the animal eats the plant, the animal would get energy from the plant, meaning that the plant gets energy from the sun. Same for humans, plants get energy from the sun, animals eat that plant, we eat those animals.


Hope this helps you!!

pleasee fill in the blanks

Answers

Umm Where is the Rest of The Question?
Crater and ray systems I think not very sure

why do large food molecules like complex carbohydrates seem to disappear in the digestive system?

Answers

Idk u tell meeeeeeeeeeeeeeee

What is litmus paper? How is it used to determine if a compound is an acid or base?

Answers

Answer:

Litmus paper is a tool used to test whether a substance is an acid or base. When a substance is dissolved in water, the resulting solution causes the litmus paper to change color. The acidity or alkalinity of a solution is determined by the concentration of hydrogen ions, or power of hydrogen, expressed as a pH value.

(I think this is right I'm not totally sure.)

What type of acid is used in automobile batteries? How does this acid cause a battery to work?

Answers

Sulfuric acid. They generate electricity through a chemical reaction.

Thread-like structures that are found in the nucleus of a cell that contains all DNA. *

A. DNA
B. Genes
C. Chromosomes
D. Nucleus

Answers

Answer:

chromosomes

Explanation:

Thread-like structures that are found in the nucleus of a cell that contains all DNA. Each chromosome is made of protein and a single molecule of DNA. Human cell nucleus contains 46 chromosomes or 23 pairs. Half of these chromosomes come from one parent and half come from the other parent.

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